JP6726465B2 - Air purifier - Google Patents

Description

The present invention relates to an air purifying device having an eliminator device and a fan device built therein.

2. Description of the Related Art Conventionally, as this type of air cleaning device, for example, as shown in FIG. 14, there is a cotton wool removing device that removes fiber dust suspended in the air. An air inlet 102 and an air outlet 103 are provided in a housing 101 of this fly fluff removing device. Further, a nozzle pipe 104 for spraying water, an eliminator device 105, and a fan device 106 are provided inside the housing 101.

The eliminator device 105 has a plurality of fins 107 bent in a dogleg shape, and a flow passage 108 formed between the fins 107. These flow passages 108 are bent in a dogleg shape.

According to this, when the fan device 106 is driven to rotate, the inside of the casing 101 becomes negative pressure, and the outside air is sucked into the spray chamber 109 inside the casing 101 from the air suction port 102, and the water is jetted into the nozzle pipe 104. Is sprayed onto the air in the spray chamber 109. After that, when the air passes through the flow passage 108 of the eliminator device 105, fine particles such as water droplets contained in the air are separated and removed, and the air passes from the suction side 110 of the fan device 106 to the discharge side 111. It blows out from the outlet 103.

Incidentally, the above-described fly cotton removing device is described in, for example, Patent Document 1 below.

4-37525

However, in the above-described conventional type, since the blowing direction 112 of the air that passes through the flow passage 108 of the eliminator device 105 and is blown to the downstream side is set to approach the suction side 110 of the fan device 106, it blows out from the flow passage 108. The air at that time flows smoothly to the suction side 110 of the fan device 106 with almost no change in direction. As a result, particles such as water droplets are more likely to pass through the flow passage 108 together with air, and there is a problem that improvement in the trapping performance of the eliminator device 105 for trapping particles cannot be expected.

An object of the present invention is to provide an air cleaning device that can improve the trapping performance of an eliminator device that traps fine particles.

In order to achieve the above object, in the air purifying apparatus according to the first aspect of the present invention, a housing is provided with an intake port and an air supply port,
Inside the housing, an air passage communicating from the air inlet to the air outlet, an eliminator device for separating and removing fine particles contained in the air flowing through the air passage, and a fan device are provided,
The eliminator device has an inflow opening through which air flows in on a lower surface, has an outflow opening through which air flows out on an upper surface, and has a plurality of bending plates arranged at a predetermined pitch inside,
A flow passage is formed between the bent plates,
The fan device is provided on the downstream side of the flow passage of the eliminator device and on the upstream side of the air supply port, is located near one end side of the eliminator device in the pitch direction of the bending plate, and is located inside the housing from the intake port. Air that has flowed into the eliminator device and has passed through the flow passage of the eliminator device is forced out of the housing through the air supply port,
Since the blowing direction of the air that passes through the flow passage of the eliminator device and is directed to the downstream side is toward the other end side of the eliminator device in the pitch direction of the bending plate, it passes through the flow passage of the eliminator device and becomes downstream. The blowing direction of the blown air is set so as to partly move away from the position of the suction port of the fan device.

According to this, as the fan device is rotationally driven, the outside air is sucked into the housing through the intake port, and after the germicide solution or the like is sprayed in the housing, the external air passes through the flow passage of the eliminator device. At this time, fine particles such as water droplets contained in the air try to go straight due to the inertial force, so that they cannot be completely bent in the flow passage, and are inertially collided with the wall surface of the flow passage to be captured. In this way, the air that has passed through the flow passage of the eliminator device is sucked from the suction port of the fan device and blows out to the outside from the air supply port.

Here, since the blowing direction of the air which passes through the flow passage of the eliminator device and is blown to the downstream side is set to the direction away from the position of the suction port of the fan device, the air flowing through the flow passage of the eliminator device is distributed. When blown out from the passage to the downstream side, the flow direction is largely changed toward the suction port of the fan device. In this way, when the air blows out from the flow passage to the downstream side, the flow direction of the air largely changes, so that the fine particles contained in the air immediately before blowing from the flow passage to the downstream side collide with the wall surface of the flow passage. The possibility of being captured is increased. This improves the trapping performance of the eliminator device for trapping particles.

In the air purifying device according to the second aspect of the present invention, the housing is provided with an intake port and an air supply port,
Inside the housing, an air passage communicating from the air inlet to the air outlet, an eliminator device for separating and removing fine particles contained in the air flowing through the air passage, and a fan device are provided,
The eliminator device has an inflow opening through which air flows in on a lower surface, has an outflow opening through which air flows out on an upper surface, and has a plurality of bending plates arranged at a predetermined pitch inside,
A flow passage is formed between the bent plates,
The fan device is provided on the downstream side of the flow passage of the eliminator device and on the upstream side of the air supply port, and is located at the center of the eliminator device in the direction of the pitch of the bending plate. Air that has flowed in and passed through the flow path of the eliminator device is forcibly sent out of the housing from the air supply port,
In a region located at one end side of the eliminator device in the direction of the pitch of the bending plate with respect to the fan device, the blowing direction of the air that passes through the flow passage of the eliminator device and is blown to the downstream side is toward the one end side of the eliminator device. Along with the fan device, in the region located on the other end side of the eliminator device in the direction of the pitch of the bending plate, the blowing direction of the air passing through the flow passage of the eliminator device to the downstream side is the other end side of the eliminator device. Since the air flows through the flow passage of the eliminator device and is blown to the downstream side, the blowing direction of the air is set so as to partly move away from the position of the suction port of the fan device .

In the air purifying device according to the third aspect of the present invention, the eliminator device is provided below the air supply port,
The fan device is provided between the eliminator device and the air supply port.

In the air purifying device according to the fourth aspect of the present invention, the blowing direction of the air that passes through the flow passage of the eliminator device and is blown to the downstream side is partially within the plane orthogonal to the rotation axis of the impeller of the fan device. The air cleaning device according to claim 1, wherein the air cleaning device is set in a direction away from the position of the suction port.

In the air purifying device according to the fifth aspect of the present invention, the eliminator device has a low flow velocity eliminator and a high flow velocity eliminator,
The low-velocity eliminator comprises a net-like or cloth-like trapping member having a large number of minute openings through which air passes,
The flow passage is provided in the high-velocity eliminator, and captures fine particles contained in the air by inertial collision.

According to this, when the air passes through the low flow velocity eliminator and the high flow velocity eliminator, the fine particles contained in the air are separated and removed. At this time, when the low-velocity air passes through the minute opening of the capturing member of the low-velocity eliminator, the fine particles in the air collide with the capturing member and are captured.

Further, when the high-velocity air passes through the flow passage of the high-velocity eliminator, the particles in the air try to go straight due to the inertial force, so that the flow passage cannot be bent and collides with the wall surface of the flow passage due to inertia. To be captured.

In this way, low-velocity air particles are mainly separated and removed by the low-velocity eliminator, and high-velocity air particles are mainly separated and removed by the high-velocity eliminator. It is possible to handle a wide range of flow velocities up to a flow velocity of air.

In the air purifying device according to the sixth aspect of the present invention, the eliminator device is inclined so that the end of the eliminator device closer to the fan device is higher and the end of the eliminator device farther from the fan device is lower. Is what

According to this, by inclining the eliminator device, when the air flowing through the flow passage of the eliminator device is blown to the downstream side from the flow passage, it is significantly reversed toward the suction port of the fan device and flows. Make a big change in direction. This further improves the trapping performance of the eliminator device for trapping fine particles.

As described above, according to the present invention, when the air is blown from the flow passage of the eliminator device to the downstream side, the flow direction of the air is largely changed, so that the air is included in the air immediately before being blown from the flow passage to the downstream side. There is an increased possibility that the particles collide with the wall surface of the flow passage and are captured. This improves the trapping performance of the eliminator device for trapping particles.

It is a figure which shows typically the internal structure of the air purifying apparatus in the 1st Embodiment of this invention. FIG. 2 is an enlarged view of an eliminator device and a fan device in FIG. 1. It is a XX arrow line view in FIG. FIG. 3 is a perspective view of the air cleaning device. FIG. 3 is a perspective view of the eliminator device built in the air cleaning device. It is a XX arrow line view in FIG. It is a YY arrow line view in FIG. FIG. 3 is a perspective view of the low flow rate eliminator of the eliminator device. FIG. 3 is a perspective view of a part of the high flow rate eliminator of the eliminator device. It is an enlarged view of an eliminator device and a fan device of an air purifying device according to a second embodiment of the present invention. It is an enlarged view of an eliminator device and a fan device of an air purifying device according to a third embodiment of the present invention. It is an enlarged view of an eliminator device and a fan device of an air purifying device in a 4th embodiment of the present invention. It is an enlarged view of an eliminator device and a fan device of an air purifying device according to a fifth embodiment of the present invention. It is a figure which shows typically the internal structure of the conventional air purifier.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
In the first embodiment, as shown in FIGS. 1 to 4, the air purifying apparatus 1 has an intake port 5 at a lower position and an air supply port 6 at an upper position in a door body 4 on the front surface of the housing 3. Therefore, a purifying air passage 9 is formed inside the housing 3 so that the air 8 to be sterilized flows from the intake port 5 on the upstream side to the air supply port 6 on the downstream side.

The purifying air passage 9 communicates with the air intake port 5 to the air feeding port 6, and in the middle of the purifying air passage 9 in the flow direction of the sterilization target air 8, from the upstream side to the downstream side, the first dustproof net is sequentially provided. 11, a medium performance filter 12, a medium 13, a spraying device 14, an eliminator device 15, a fan device 16, and a second dustproof net 17 are provided.

The first dustproof net 11, the medium performance filter 12, and the medium 13 are attached to a wind tunnel 19 that forms a gas-liquid contact region of the purification air passage 9. The medium 13 is arranged inside the wind tunnel 19 so as to incline obliquely downward from the side of the intake port 5 toward the inner side of the housing 3, and the height required for the arrangement is suppressed.

The spraying device 14 sprays a sterilizing solution 18 of slightly acidic electrolyzed water on the air 8 to be sterilized which flows through the ventilation passage 9 along the medium 13.
The medium performance filter 12 captures and removes fine particles from the air flow, and the medium 13 holds the spray water sprayed from the spraying device 14 to promote gas-liquid contact between the sterilization target air 8 and the germicide solution 18. It is, for example, a matt of polyvinylidene chloride fiber. The eliminator device 15 captures and separates and removes fine particles such as water droplets and mist contained in the air 8 to be sterilized, and is located above the wind tunnel 19 in which the medium 13 is arranged and at the air supply port 6. It is located in the lower position.

A pan 21 for receiving the germicide solution 18 falling from the wind tunnel 19 is arranged below the wind tunnel 19, and the eliminator device 15, the media 13, the wind tunnel 19, and the pan 21 can be removed from the housing 3 at the time of maintenance. 13 is detached from the front side of the wind tunnel 19.

A circulation tank 22 is provided below the pan 21, and the circulation tank 22 receives and stores the germicide solution 18 descending from the purification air passage 9 and the germicide solution 18 flowing from the bread 21. A circulation system 23 is arranged between the circulation tank 22 and the spraying device 14, and the circulation system 23 has a circulation pump 24 and supplies the germicide solution 18 in the circulation tank 22 to the spraying device 14. is there.

As shown in FIGS. 5 and 6, the eliminator device 15 includes an eliminator case 30, and a low flow rate eliminator 31 and a high flow rate eliminator 32 provided in the eliminator case 30.

The eliminator case 30 is a rectangular box-shaped case, and has an inflow opening 35 into which the sterilization target air 8 flows in on the lower surface, and an outflow opening 36 into which the sterilization target air 8 flows out from the upper surface. ing.

The low-velocity eliminator 31 and the high-velocity eliminator 32 are vertically stacked in the eliminator case 30 (one example of the gas flow direction). The low flow velocity eliminator 31 is provided in the lower stage, and the high flow velocity eliminator 32 is stacked on the downstream side of the low flow velocity eliminator 31, that is, in the upper stage.

As shown in FIGS. 6 to 8, the low flow velocity eliminator 31 has a rectangular frame 39 and a capturing member 40 provided in the frame 39. The trapping member 40 is a stainless steel wire mesh (mesh) having a large number of minute openings (mesh openings) through which the sterilization target air 8 passes. A plurality of peaks 43 and valleys 44 are alternately formed on the capturing member 40.

As shown in FIGS. 2, 6, 7 and 9, the high flow velocity eliminator 32 has a plurality of bending plates 48 arranged at a predetermined pitch P. These bent plates 48 are bent in a substantially V shape, and between the bent plates 48, there is a bent flow path 49 for trapping fine particles such as water droplets contained in the air 8 to be sterilized by inertial collision. Has been formed.

The bending plate 48 has a concavo-convex portion (not shown) for connection, and the convex portion of the bending plate 48 is fitted into the concave portion of the adjacent bending plate 48 to secure the flow passage 49. The bent plates 48 are connected to each other.

The high flow velocity eliminator 32 is placed and supported on the frame 39 of the low flow velocity eliminator 31.
As shown in FIGS. 3 and 7, the eliminator device 15 is inclined so that the front portion is located at a higher position (higher position) than the rear portion. As a result, the low-velocity eliminator 31 is inclined so that the front end portions of the crests 43 and the troughs 44 in the longitudinal direction A are higher than the rear end portions thereof, and the high-velocity eliminator 32 is of the bending plate 48. The front end portion in the longitudinal direction A is inclined so as to be higher than the rear end portion. The longitudinal direction A is orthogonal to the direction B of the pitch P of the bending plate 48.

As shown in FIGS. 1 to 3, the fan device 16 is provided on the downstream side (upper side) of the flow passage 49 of the eliminator device 15 and on the upstream side (lower side) of the air supply port 6, and the negative pressure is applied to the inside of the housing 3. Then, the air 8 to be sterilized, which has flowed into the housing 3 from the intake port 5 and passed through the flow passage 49 of the eliminator device 15, is forcibly discharged from the air supply port 6 to the outside of the housing 3.

The fan device 16 is a sirocco fan, and is formed in the fan case 52, and a cylindrical impeller 53 rotatably provided in the fan case 52, a rotary drive device 54 such as an electric motor for rotating the impeller 53, and the like. The suction port 55 and the discharge port 56 are formed. The impeller 53 has many blades. The suction port 55 is formed on the back surface (rear surface) of the fan case 52, and the downstream side of the eliminator device 15 and the inside of the fan case 52 communicate with each other via the suction port 55. Further, the discharge port 56 is formed on the upper surface of the fan case 52, and the inside of the fan case 52 and the air supply port 6 communicate with each other via the discharge port 56.

As shown in FIGS. 1 and 2, the fan device 16 is located closer to the left end side (an example closer to one end side) of the eliminator device 15 in the direction B of the pitch P of the bending plate 48.
Further, the blowing direction C of the sterilization target air 8 that passes through the flow passage 49 of the eliminator device 15 and is blown to the downstream side is within the plane orthogonal to the rotation axis 57 of the impeller 53, and the suction port 55 of the fan device 16. To the right end side of the eliminator device 15 (an example of the other end side).

Further, as shown in FIG. 4, a control device 26 for operating the air cleaning device 1 is provided on the front surface of the door body 4. The control device 26 has a functional circuit for performing a low speed operation mode and a high speed operation mode, and controls the rotation speed of the rotary drive device 54 of the fan device 16 by operating a switch or the like to set the operation mode to the low speed operation mode. And switch to high-speed operation mode.

The operation of the above configuration will be described below.
By operating the switch or the like, the control device 26 switches the air cleaning device 1 to the low speed operation mode to operate, whereby the impeller 53 of the fan device 16 rotates at low speed, and the air 8 to be sterilized is discharged from the intake port 5. After being sucked into the housing 3 and flowing through the purification ventilation passage 9 at a low flow velocity, it is sent out from the air supply port 6 into the room.

At this time, the germicide solution 18 in the circulation tank 22 is supplied to the spray device 14 by the circulation pump 24, and the spray device 14 is applied to the sterilization target air 8 flowing from the upstream side to the downstream side of the purification air passage 9 in the housing 3. The germicide solution 18 is sprayed from.

By this spraying, foreign matter such as suspended bacteria and dust contained in the air 8 to be sterilized collide with the sprayed water of the sprayed bactericide solution 18, and are captured and sterilized. Further, the sprayed water of the bactericide solution 18 that has reached the medium 13 causes the floating bacteria and dust adhering to the medium 13 to flow down, and also takes in the foreign substances such as floating bacteria and dust contained in the air 8 to be sterilized, and the circulation tank. It flows into 22.

The sterilization target air 8 that has passed through the medium 13 is supplied to the eliminator device 15, flows into the interior from the inflow opening 35 of the eliminator case 30, and moves upward from the lower (upstream side) of the trapping member 40 of the low-velocity eliminator 31. (Downstream side), then passes through the plurality of flow passages 49 of the high-velocity eliminator 32 from below (upstream side) to above (downstream side), and from the outflow opening 36 of the eliminator case 30 above (downstream side). ) To.

At this time, when the low flow velocity sterilization target air 8 passes through the minute openings of the mesh of the capturing member 40 of the low flow velocity eliminator 31, the fine particles D such as water droplets in the sterilization target air 8 enter the capturing member 40. Crash and get caught. Further, the fine particles D such as water droplets that try to pass through the minute openings of the capturing member 40 adhere to the fine particles D such as water droplets that have already been captured at the peripheral portion of the opening of the capturing member 40 and are aggregated. The particles are captured by the aggregation action and grow into fine particles D such as large water droplets.

In this way, the low flow velocity sterilization target air 8 that has passed through the low flow velocity eliminator 31 flows upward from the plurality of flow passages 49 of the high flow velocity eliminator 32. At this time, as shown in FIG. 6, the fine particles D such as water droplets in the air 8 to be sterilized cannot be completely bent in the flow passage 49 due to inertia, and are collided with the surface of the bending plate 48 by inertia and captured.

When the sterilization target air 8 has a low flow velocity, the fine particles D in the sterilization target air 8 are small and have a small inertial force, and thus are mainly separated and removed by the low flow velocity eliminator 31 as described above. ..
Further, by operating the switch or the like, the control device 26 switches the air cleaning device 1 to the high-speed operation mode to operate, whereby the impeller 53 rotates at high speed, and the sterilization target air 8 passes from the intake port 5 to the housing 3. After being sucked in and flowing through the purification ventilation passage 9 at a high flow rate, it is sent out from the air supply port 6. Since the sterilization target air 8 has a high flow velocity when the sterilization target air 8 passes through the minute opening of the capturing member 40 of the low flow velocity eliminator 31, the fine particles D such as water droplets in the sterilization target air 8 are It is easy to pass through the minute opening of the capturing member 40 of the low flow velocity eliminator 31 together with the air 8 to be sterilized, but even if it passes through the low flow velocity eliminator 31, it passes through the flow passage 49 of the high flow velocity eliminator 32. At times, since the vehicle tends to go straight by the inertial force, the flow passage 49 cannot be completely bent, and the surface of the bending plate 48 is inertially collided and captured.

The fine particles D in the high flow velocity sterilization target air 8 adhere to the fine particles D such as water droplets trapped at the peripheral portion of the opening portion when passing through the opening portion of the capturing member 40 of the low flow velocity eliminator 31. Then, it grows into large particles D and drops downward by gravity. If the droplets are not dropped, the fine particles D in a large size flow from the low flow velocity eliminator 31 into the flow passage 49 of the high flow velocity eliminator 32, so that the inertial force becomes strong and the inertial collision is likely to occur easily. Thus, it is mainly separated and removed by the high flow rate eliminator 32.

Further, when the low speed operation mode is switched to the high speed operation mode, even if the fine particles D captured by the capturing member 40 of the low flow velocity eliminator 31 are blown off to the downstream side (upper side), the blown off fine particles D are on the downstream side. Is reliably captured by the high flow rate eliminator 32 provided in the.

In this way, the fine particles D such as water droplets in the low flow velocity sterilization target air 8 are mainly separated and removed by the low flow velocity eliminator 31, and the fine particles D such as water droplets in the high flow velocity sterilization target air 8 are mainly removed. Since it is separated and removed by the high-velocity eliminator 32, it is possible to deal with a wide range of sterilization target air 8 from a low-velocity sterilization target air 8 to a high-velocity sterilization target air 8.

Moreover, since the plurality of peaks 43 and the plurality of valleys 44 are alternately formed on the trapping member 40 of the low flow velocity eliminator 31, the area of the trapping member 40 can be increased and the sterilization target air 8 can be trapped. The flow velocity when passing through the minute opening of the member 40 decreases.

Further, the water droplets (one example of the fine particles D) captured by the capturing member 40 and the water droplets captured by the bending plate 48 and flowing down from the surface of the bending plate 48 to the capturing member 40 are formed along the slope of the mountain portion 43 and the valley portion 44. Since it flows down toward the front surface, the formation of a water film can be prevented, and the surface of the capturing member 40 is not covered with the water film. By doing so, it is possible to reduce the pressure loss when the sterilization target air 8 passes through the low flow velocity eliminator 31.

Further, the water droplets captured by the capturing member 40 flow down toward the rear end of the low flow velocity eliminator 31 due to the inclination of the eliminator device 15. This improves the drainage of the capturing member 40.

Further, since the capturing member 40 is a metal net having a plurality of peaks 43 and valleys 44, the surface of the capturing member 40 can be easily cleaned using a brush or the like.
Further, since the high flow velocity eliminator 32 is mounted and supported on the frame frame 39 of the low flow velocity eliminator 31 in the eliminator case 30, the structure of the eliminator device 15 is simplified.

Even when operating in the high-speed operation mode, the medium-performance filter 12 is gradually clogged, and the sterilization target air 8 passing through the eliminator device 15 decreases from a high flow rate to a low flow rate. Even in such a case, the fine particles D such as water droplets in the air 8 to be sterilized can be reliably separated and removed by the eliminator device 15.

The sterilization target air 8 thus passing through the eliminator device 15 is sucked into the fan case 52 through the suction port 55 of the fan device 16 and flows through the fan case 52, as shown in FIGS. 1 to 3. After that, the gas is discharged from the discharge port 56 to the outside of the fan case 52, and blows out from the air supply port 6 to the outside.

Here, since the blowing direction C of the sterilization target air 8 that passes through the flow passage 49 of the eliminator device 15 and is blown to the downstream side is directed in the direction away from the position of the suction port 55 of the fan device 16 (upper right direction), When the sterilization target air 8 that has flowed through the flow passage 49 is blown out to the downstream side from the flow passage 49, it is reversed toward the suction port 55 of the fan device 16 and the flow direction is significantly changed (direction is changed). Therefore, there is an increased possibility that the fine particles D contained in the sterilization target air 8 immediately before being blown out to the downstream side from the flow passage 49 collide with the bending plate 48 and are captured. This improves the trapping performance of the eliminator device 15 for trapping the fine particles.

In the above-described embodiment, the wire mesh (mesh) is used as the capturing member 40 of the low flow velocity eliminator 31, but it may be a cloth formed by weaving resin or metal fibers. It may be a breathable member having minute openings.

(Second embodiment)
In the first embodiment, as shown in FIGS. 1 and 2, the fan device 16 is located closer to the left end side of the eliminator device 15 in the direction B of the pitch P of the bending plate 48, but in the second embodiment. As shown in FIG. 10, the fan device 16 may be positioned closer to the right end side. In this case, the direction of the bending plate 48 may be reversed and the blowing direction C of the air 8 to be sterilized may be directed to the left end side (upper left direction) of the eliminator device 15.

According to this, the same operation and effect as those of the first embodiment can be obtained.
(Third Embodiment)
In the first embodiment, as shown in FIGS. 1 and 2, the fan device 16 is located closer to the left end side of the eliminator device 15 in the direction B of the pitch P of the bending plate 48, but the third embodiment. As shown in FIG. 11, the fan device 16 may be located at the center of the left and right sides. In this case, the direction of the bending plate 48 located on the left side and the direction of the bending plate 48 located on the right side of the fan device 16 may be reversed.

According to this, the same operation and effect as those of the first embodiment can be obtained.
(Fourth Embodiment)
In the first embodiment, as shown in FIG. 2, the rotational axis 57 of the impeller 53 is set in the front-rear direction, the suction port 55 is formed on the back surface (rear surface) of the fan case 52, and the discharge port 56 is formed. Although it is formed on the upper surface of the fan case 52, as a fourth embodiment, as shown in FIG. 12, the rotation axis 57 of the impeller 53 is set in the left-right direction (direction B of the pitch P) and suction is performed. The port 55 is formed on the left side surface (one side surface) of the fan case 52, the discharge port 56 is formed on the upper surface of the fan case 52, and the blowing direction C of the sterilization target air 8 is set to a direction away from the position of the suction port 55. You may.

According to this, the same operation and effect as those of the first embodiment can be obtained.
The locations where the suction port 55 and the discharge port 56 are formed are not limited to the back surface, the left side surface, and the top surface of the fan case 52, and they may be formed at other locations of the fan case 52.

(Fifth Embodiment)
In the fifth embodiment, as shown in FIG. 13, the end portion E1 (one end portion) of the eliminator device 15 closer to the fan device 16 is positioned higher than the end portion E1 of the eliminator device 15 farther from the fan device 16. The eliminator device 15 is provided so as to be inclined so that E2 (the other end portion) is lower.

According to this, the same operation and effect as those of the first embodiment can be obtained. In particular, since the eliminator device 15 is inclined, the sterilization target air 8 that has flowed through the flow passage 49 of the eliminator device 15 flows into the suction port 55 of the fan device 16 when blown out from the flow passage 49 to the downstream side. The direction of flow is greatly changed (direction change). This further improves the trapping performance of the eliminator device 15 for trapping the fine particles.

Similar to the fifth embodiment, the same effect can be obtained even if the eliminator device 15 in the above-described first and second embodiments is inclined.
Although a sirocco fan is used as the fan device 16 in each of the above-described embodiments, other types of fans may be used.

1 Air Purifying Device 3 Housing 5 Inlet 6 Air Inlet 8 Air to be Sterilized 9 Air Vent for Purification 15 Eliminator Device 16 Fan Device 31 Eliminator for Low Velocity 32 Eliminator for High Velocity 40 Capture Member 49 Flow Passage 53 Impeller 55 Suction Port 57 Rotation axis B Bending plate pitch direction C Blow-out direction D Fine particle E1 End portion E2 closer to the fan device of the eliminator device E2 End portion P farther from the fan device of the eliminator device P Predetermined pitch

Claims (6)

The housing is provided with an intake port and an air supply port,
Inside the housing, an air passage communicating from the air inlet to the air outlet, an eliminator device for separating and removing fine particles contained in the air flowing through the air passage, and a fan device are provided,
The eliminator device has an inflow opening through which air flows in on a lower surface, has an outflow opening through which air flows out on an upper surface, and has a plurality of bending plates arranged at a predetermined pitch inside,
A flow passage is formed between the bent plates,
The fan device is provided on the downstream side of the flow passage of the eliminator device and on the upstream side of the air supply port, is located near one end side of the eliminator device in the pitch direction of the bending plate, and is located inside the housing from the intake port. Air that has flowed into the eliminator device and has passed through the flow passage of the eliminator device is forced out of the housing through the air supply port,
Since the blowing direction of the air that passes through the flow passage of the eliminator device and is directed to the downstream side is toward the other end side of the eliminator device in the pitch direction of the bending plate, it passes through the flow passage of the eliminator device and becomes downstream. air cleaning apparatus characterized by blowing direction of the air is set in a direction away from the position of the inlet of the partial fan device that blows. The housing is provided with an intake port and an air supply port,
Inside the housing, an air passage communicating from the air inlet to the air outlet, an eliminator device for separating and removing fine particles contained in the air flowing through the air passage, and a fan device are provided,
The eliminator device has an inflow opening through which air flows in on a lower surface, has an outflow opening through which air flows out on an upper surface, and has a plurality of bending plates arranged at a predetermined pitch inside,
A flow passage is formed between the bent plates,
The fan device is provided on the downstream side of the flow passage of the eliminator device and on the upstream side of the air supply port, and is located at the center of the eliminator device in the direction of the pitch of the bending plate. Air that has flowed in and passed through the flow path of the eliminator device is forcibly sent out of the housing from the air supply port,
In a region located at one end side of the eliminator device in the direction of the pitch of the bending plate with respect to the fan device, the blowing direction of the air that passes through the flow passage of the eliminator device and is blown to the downstream side is toward the one end side of the eliminator device. Along with the fan device, in the region located on the other end side of the eliminator device in the direction of the pitch of the bending plate, the blowing direction of the air passing through the flow passage of the eliminator device to the downstream side is the other end side of the eliminator device. The air cleaning device is characterized in that the blowing direction of the air that passes through the flow passage of the eliminator device and is blown to the downstream side is partially set so as to be away from the position of the suction port of the fan device. apparatus. The eliminator device is installed below the air supply port,
The air cleaning device according to claim 1 or 2, wherein the fan device is provided between the eliminator device and the air supply port . The blowing direction of the air that passes through the flow passage of the eliminator device and is blown to the downstream side is set so as to partly move away from the position of the suction port of the fan device in the plane orthogonal to the rotation axis of the impeller of the fan device. The air cleaning device according to claim 1, wherein the air cleaning device is provided. The eliminator device has a low flow rate eliminator and a high flow rate eliminator,
The low-velocity eliminator comprises a net-like or cloth-like trapping member having a large number of minute openings through which air passes,
The air purification device according to any one of claims 1 to 4, wherein the flow passage is provided in the high flow velocity eliminator, and traps fine particles contained in the air by inertial collision. 2. The eliminator device is tilted so that the end of the eliminator device closer to the fan device is higher and the end of the eliminator device farther from the fan device is lower. The air cleaning device according to any one of claims 1 to 5.

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